*** Note: DerVoco is an Audio Unit effect extension and requires an AUv3 compatible host app, like AUM, BM3, Cubasis or GarageBand. It does not run as a standalone app ***

Make your synths or drums speak and sing!

DerVoco is a vintage vocoder emulation. DerVoco uses analog modelled components including filters, envelope followers and companders to create a warm vintage sound instead of digital techniques like FFT.


• AUv3 Audio Effect and Audio Music Effect, works in all AUv3 compatible hosts.
• Internal polyphonic VCO may be used as a carrier and can be controlled via MIDI, when plugin is loaded as AU MFx.
• A special "input mode” where the carrier and modulator signals are encoded as the left and right channels of a stereo input signal. In this mode any synth plugin (e.g. BeepStreet Zeeon) may be used as a carrier signal.
• 11 or 15 bands with on-screen equalizer.
• Controllable filter resonance continuously blends from smooth to sharp and ringing sound signature.
• Built in compressor and noise gate
• Optimised to the limits: 60 filters take 4% CPU on latest iPads.

Ratings and Reviews

3.0 out of 5
9 Ratings

9 Ratings

AldrichZurcher ,

Crashes When Exporting

I love using this plugin, it’s a lot of fun! However, when attempting to export a song from Garageband that uses this plugin, it fails and does not reload. This makes the project useless if it cannot be exported. Please help!!

Dr. Sidney Gottlieb ,

Another rip-off from a horrible app developer

As other reviews have stated, this app is pretty much worthless because it fails 100% of the time when trying to export songs from GarageBand.

But at least it’s only a couple of bucks down the drain.

By all means, do not buy the Zeeon synth from BeepStreet. It does not show up at all as an Inter-App Audio instrument in GarageBand. It is even falsely-advertised as working in AUV3 mode. It doesn’t. I’m much more upset about the 10 bucks I lost downloading that sham clunker.

NoniBurk ,

Couldn't get it to work...

I couldn't get it to work with GarageBand on iPhone. Is this only for iPad or am I missing something?


Jaroslaw Jacek
3.1 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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